Road magnet



May 20,- 1930. w. M. CARTER 1,759,687

11mm` IAGNET Filed Nov. 27, 1928 2 Sheets-5hetJ l ATTORNEY May 20,1,930. w. M. CARTER 1,759,687 v ROAD nenni" Filed Nov. 27, 1928 2Sheets-Sheet 2 o 3 3.37 37 l I 36 /K :zo 35 f-) `27 fC1/- I I ll l 1 i l9 M INVENTR W/Mfer BY7 T60 ATTORN EY Patented May 2o. 1930 yIlan-'1121STATE-s;

I v \i\rllr.'1.1s:1a.v u. lcen-Mair..foi* GREENWOOD, missrssxrrr noni)iraniana' f This invention relates to miligriets"designedK for 'usein'pickifng upnails,"screwsor an other metallic articles from roadwayssuc lautomobilesi 'f l A'vprim'aryobject of the invention is to asWould-#be liable to puncture" thek tires of l t l f' wires 5"'an'd 6which supply `current 'to the 55 provide aV magnet of this characterwhich mag bemountedon'a suitable vehicle, prefera ly a truck and drawnalong over the l foedwy forfpicking" up' objects liable? a)` puncturetires, said objects being releasedrom the magnet when de's'ired'andshoveled up and -carr'ied'to a suitable place of deposit. Anotherfobjectis to` provide a magnet of this character 'which maybemountedl on-.a

truck together with thenecessary motor'for magnetizing it' an'dwhichwhen'not desu-ed for use-mayv be readily removed from" the ftruclrt'ojpermit the'latter` to beusedV for other purposes)I y `Anotherobject ofthe invention 1s to provide an eicient supporting means for the magnetwhich are adjustable` to'rposition it'v the` desired heighty aboveftheroadwa and whichmay` bequickly; manipulated or so' positioning--themagnet.

In carrying out these objects;I the invention 'y' v .clearly'm Fig. 1andhas its free end adjust- 'ably connected by means-of a chain 20 withis susceptible of a wide range of modification without departing Vfromthe spirit or 3 sacrificing any ofv the advantages of the" claimedinvention; there being shown in the drawings for illustrative purposesa. preferred-and practical form, in which:

Figure 1 'representan side elevation of the 5 rear portion of'atruck'having this improved road lmagnet mounted thereontogether with ebe adjusted b means of the'- lever 19 operating to rock t e shaft 16 andwhich lever is p the motor for operating it;

Fig. 2 is a rear elevation thereof;I v Fig. 3 is an enlarged endel'eyation of the magnet; and Fig. 4 is an enlarged detail perspectiveview of a portion of the ma et with parts broken out to show theinterlor construction and with one of the'side plates removed; l Fig. 5is a similar view of the removed side late. p Fig. 6 is a dia am of themagnet wing.

In the embo lment illustrated a. truck p lframe or chassis 1 is shownhaving the usual "'rear wheels 2 and on the floor 3 of which is mounteda small motor 4 for energizing the. i

vmagnet and which constitutes a part of a small Delco or other plantsuitable for this purpose Leadingvfrom the motor 4 are the magnet V10and'i'n which is located a Switch 7 fori controlling'the current andcutting it off when desired from the magnet.

. The magnet 10 is preferably of a lengthl corresponding tothe entireWidth or slightly greater than that of the truck in connection withwhich it isused so that it will extend over the width of the road way tobe cleaned and itis suspended from the'truck body by means of chains 11and 12 having turn'buck-r 65 Vles 13 therein for adjusting their len hto 'vary theposition of the magnetin re ation to the road Way. v'Theupper-ends of lthese chains 11 and 12 are shown connected with the endsof arms 14 and l'which extendv 70 cbliquely upward from a cross rod orshaft 16 'journaled 1in suitablel bearings 17 carried by pillowfblocks18 bolted to or otherwise secured to thetruck bottom 3.

Extending forwardly I rom the'rock shaft 75 '16 is a lever 19k which isarranged at an obtuscan le tothe arms 14 and 15 as shown a hook 21Ysecured to the truck bottom 80 Suitable hangers 22 and 23'connectchains 11 and 12 with the magnet 10 at longitudinally spaced intervalsas shown clearly in Fig.

2. These hangers are preferably made bailshaped and are composed ofstrap irons.-

It will thus beseen that the magnet 10 may 3, 4, 5 and 6 and comprises asoft Russian iron core 26 wound4 with No. 10 double cotton square magnetWire and having the lead wlres 5 and 6 entering and leaving the magnetre spectively through fibered tubes 30 `and 31. The coil 27 so formed isinsulated with Fuller board of suitable thickness, the sides beingpreferably insulated by two layers of g1g of an inch board while thecenter core has t-hree layers of 31E of an inch of Fuller board, withlap 'oints The outer surface of the. coil is insulated with two layersof gli of an inch of Fuller board and a 22 gauge brass strip 29 isdisposed between the coil 2T and bottom plates 32 and 33 and the top andends of the magnet are alsocovered with 22 gauge brass as shown at 30.The side plates 35 and 36 are connected with the bottom plates 32 and 33by counter-sunk bolts, as shown in dotted lines in Fig. 3, and with thecore 26 by means of 5A; inch stud bolts 37.`

In Fig. 6 a diagram of the wir-ing of the magnet is shown. Y

When a road is to be cleaned of puncturing objects such as nails,spikes, screws and kthe like the little Delco plant including the motor4 is mounted on the floor of a truck, the

pillow plates 18 secured to vsaid floor near the rear end thereof and ahook 21 mounted on the floor in advance of said plates. The lever 19 isthen placed in position byy mounting the rock shaft 16 in the bearingsof the pillow blocks and the magnet 10 is connected with said lever bythe chains 11 and 12 and with the motor by the wires 5 andG and theapparatus is ready for use, it beingsof course understood that themagnet is adjustedto locate. it in roper relation to the road way whichis pre erably about three or four inches above -said road way and whichis accomplished by mani ulating either the turntuckles 13 or adjustingthe chain 20. The truck is then driven slowly over the road way and themagnet will pick up all metallic ob- -jects along the road and when itis desired to unload the magnet the switch Y7 is closed to cut oi thecurrent after which the objects will drop on to the road and may beshoveled up and placed in the truck or thrown to one side as desired. e4 l When it is not desired to use this apparatus for road cleaning themotor and the magnet; with its operating mechanism may be readilyremoved from the truck andthe truck used for other purposes. y

Without further description it is thought that the features andadvantages of the invention will be readily apparent to those skilled inthe art, and itwilll, of course, be understood that changes in the form,proportion and minor details of construction may be resorted to withoutdeparting from the spirit of the invention or its scope as claimed. Iclaim: n

1. A magnetic road cleaning apparatus comprisingpillow blocks havingbearings to be mounted on a truck, a rock shaft mounted. `in saidbearings and having lever arms eX.-

tending laterally therefrom in opposite directions and at an obtuseangle to each other, adjustable suspension means carried by one of saidarms, a magnet carried by said suspension means, means carried by theother arm adapted for adjustable connection with a truck,.andmagnetizing means for the magnet adapted to be carried by the truck.

2. A magnetic (road, cleaning apparatus comprising a rock shaft adaptedto be mounted on a structure, longitudinally spaced arms extendinglaterally vfrom said shaft in one direction, another arm extendinglaterally from said shatin the opposite direction and located betweensaid first mentioned arms, said oppositely extending arms being*arranged at an obtuseangleto each other,`a cham connected with theintermediatel arm for adjustably connecting said arm withja supportingstructure, chains carried by the 'f first mentioned arms and havinvmeans for adjusting them independently o eachother, means forconnecting a magnet to sald chams,

and means for energizing the magnetadapted to be carried the structureon which the magnet supporting means is mounted; 1

3. A .magnetic road cleaning apparatus comprising a rock shaft adaptedto befmounted on a structure, longitudinallyspaced armsextendinglaterally from said shalt in one l direction, another armextending laterally'V from said shaft in the opposite direction andlocated between said first mentioned arms, ar-` ran ed at an obtuseangle to each otler, a chain connected with the intermediate-arm saidoppositely extending arms bein for adjustably connecting said arm withasupporting structure, chains carriedbythe first mentioned arms and havinadjusting them independently o v each other, means for connecting amagnet to'said chains,

means for energizing the magnet adapted` to be carried by the structurevon whlch the magnet supporting means is mounted, and l l means forpreventing the swinging of theV its passage over a road way.

